Dan Charles

Dan Charles is NPR's food and agriculture correspondent.

Primarily responsible for covering farming and the food industry, Charles focuses on the stories of culture, business, and the science behind what arrives on your dinner plate.

This is his second time working for NPR; from 1993 to 1999, Charles was a technology correspondent at NPR. He returned in 2011.

During his time away from NPR, Charles was an independent writer and radio producer and occasionally filled in at NPR on the Science and National desks, and at Weekend Edition. Over the course of his career Charles has reported on software engineers in India, fertilizer use in China, dengue fever in Peru, alternative medicine in Germany, and efforts to turn around a troubled school in Washington, DC.

In 2009-2010, he taught journalism in Ukraine through the Fulbright program. He has been guest researcher at the Institute for Peace Research and Security Policy at the University of Hamburg, Germany, and a Knight Science Journalism fellow at the Massachusetts Institute of Technology.

From 1990 to 1993, Charles was a U.S. correspondent for New Scientist, a major British science magazine.

The author of two books, Charles wrote Master Mind: The Rise and Fall of Fritz Haber, The Nobel Laureate Who Launched the Age of Chemical Warfare (Ecco, 2005) and Lords of the Harvest: Biotech, Big Money, and the Future of Food (Perseus, 2001) about the making of genetically engineered crops.

Charles graduated magna cum laude from American University with a degree in economics and international affairs. After graduation Charles spent a year studying in Bonn, which was then part of West Germany, through the German Academic Exchange Service.

Eggs are becoming more expensive and scarce recently because so many chickens have died from avian flu. So bakers, in particular, are looking for cheaper ingredients that can work just as well. (This story previously aired on All Things Considered on July 22, 2015.)

As you know, here at The Salt we've been a little obsessed with yogurt lately.

But there's a flip side to the story of the yogurt boom. What about that other product made from fermented milk that had its boom from 1950 to 1975, and has been sliding into obscurity ever since?

Cottage cheese took off as a diet and health food in the 1950s.

Rearranging veggie genes is big business, and we're not even talking about biotechnology. Private companies and university researchers spend hundreds of millions of dollars every year breeding better genetic varieties of food crops.

But organic farmers say those programs have a big blind spot when it comes to figuring out which new varieties are truly better. Few companies or researchers test those varieties under organic conditions.

What if farmers, instead of picking up some agricultural chemicals at their local dealer, picked up a load of agricultural microbes instead?

It's something to contemplate, because some big names in the pesticide business — like Bayer and Monsanto — are putting money behind attempts to turn soil microbes into tools that farmers can use to give their crops a boost.

It's a symptom of the soaring interest in the ways microbes affect all of life. In our bodies, they help fight off disease. In the soil, they help deliver nutrients to plants, and perhaps much more.

Bird flu has been striking chicken and turkey farms in parts of the West and Midwest. This past week, it hit a flock of millions egg-laying chickens in northeastern Iowa. Update 4/22/2015: The USDA now says that around 3 million birds were affected in the Iowa facility — down from a previous estimate of 5 million.

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We have good news for all of you who find browned apple slices unappetizing. It's bad news, though, if you don't like scientists fiddling with your food. The U.S. Department of Agriculture has given a green light to apples that have been genetically modified so that they don't turn brown when you cut them open.

On the face of it, the new potato varieties called "Innate" seem attractive. If you peel the brown skin off their white flesh, you won't find many unsightly black spots. And when you fry them, you'll probably get a much smaller dose of a potentially harmful chemical.

But here's the catch: Some of the biggest potato buyers in the country, such as Frito-Lay and McDonald's, seem afraid to touch these potatoes. Others don't even want to talk about them because they are genetically modified organisms, or GMOs.

Within just a few days, on Jan. 1, all eggs sold in California will have to come from chickens that live in more spacious quarters — almost twice as spacious, in fact, as the cages that have been the industry standard.

It's been a shock to the egg industry, and to grocery stores. Eggs are one of those staples that self-respecting grocery retailers absolutely, positively have to keep in stock. "You have to have bread, milk, lettuce. You have to have eggs," says Ronald Fong, the president and CEO of the California Grocers Association.

For practically our whole history of cooking and eating, we've gotten our spices and most flavors (not to mention all of the other basic nutrients that keep us alive) straight from plants.

But researchers and biotech companies are starting to produce some of these nutrients and flavors — especially the high-priced ones — in their laboratories.

Around the globe, it's become easier for people to buy food. The U.N.'s Food and Agriculture Organization is reporting that its global food price index has now fallen to the lowest level in four years. That's because of good weather and big harvests in places like North America, Europe and China.

Almost all of the major food commodities have become less expensive: grains, vegetable oils, sugar and dairy products. Dairy prices, in fact, are down by almost 20 percent, compared with their peak a year ago.

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